Delphi获取某月份的最后一天是多少，做成了窗体程序，可视化操作，用起来很方便。你只需指定某个日期就可以了，程序自动计算得到该月份的最后一天是多少-What is the Delphi for the last day of a month, a window procedure, visual operation, easy to use. You only need to specify a date on it, how much is the program automatically calculated by the last day of the month